Community Involvement Holiday Heating and Air Conditioning has been a part of Lennox Industries’ initiative Heat Up Missouri for the past 4 years. Lennox generously donates furnaces and Holiday Heating, along with other contractors, donate their labor, talent, and materials for the installation. “Neighbors helping Neighbors” is the motto for Heat Up Missouri because the furnaces are given to those in need, who have been nominated by their neighbors and friends. Along with their participation in the Heat Up Missouri program, Holiday Heating has also volunteered their time with the St. Louis Habitat for Humanity Chapter. They have also donated equipment and services to the chapter for the new builds.